* {
  margin: 0;
  padding: 0;
  border: 0 none;
  outline: none;
}
.box {
  width: 500px;
  margin: 100px auto;
  border: 1px solid #ccc;
}
.box #btns button {
  width: 100px;
  height: 50px;
  float: left;
  border-right: 1px solid #ccc;
  cursor: pointer;
}
.box #btns .active {
  background-color: #eb923f;
}
.box #divs div {
  width: 500px;
  height: 150px;
  font-size: 40px;
  padding-top: 60px;
  background-color: #eb923f;
  text-align: center;
  display: none;
}
